package com.haha.community.controller;

import com.haha.community.entity.User;
import com.haha.community.service.UserService;
import com.haha.community.util.CommunityConstant;
import com.wf.captcha.utils.CaptchaUtil;
import org.apache.commons.lang3.StringUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.validation.BindingResult;
import org.springframework.validation.FieldError;
import org.springframework.validation.ObjectError;
import org.springframework.validation.annotation.Validated;
import org.springframework.web.bind.annotation.*;

import javax.imageio.ImageIO;
import javax.servlet.http.Cookie;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import java.awt.image.BufferedImage;
import java.io.IOException;
import java.io.OutputStream;
import java.util.List;
import java.util.Map;

/**
 * @author Yang
 * @date 2020/10/31
 */
@Controller
public class LoginController  implements CommunityConstant {
    private static Logger logger = LoggerFactory.getLogger(LoginController.class);

    @Autowired
    private UserService userService;

    @GetMapping("/register")
    public String getRegisterPage() {
        return "/site/register";
    }
    @GetMapping("/login")
    public String getLoginPage() {
        return "/site/login";
    }

    @Value("server.servlet.context-path")
    private String contextPath;


    /**
     * 注册的处理
     * @param model
     * @param user
     * @return
     */
    @PostMapping("/register")
    public String register(Model model, @Validated User user, BindingResult bindingResult) {
        if (bindingResult.hasErrors()){
            List<FieldError> fieldErrors = bindingResult.getFieldErrors();
            for (FieldError fieldError : fieldErrors) {
                model.addAttribute(fieldError.getField()+"Msg",fieldError.getDefaultMessage());
                logger.info("******校验失败，出错的原因为{}*****",fieldError.getDefaultMessage());
            }
            return "/site/register";
        }
        Map<String, Object> map = userService.register(user);
        if (map == null || map.isEmpty()) {
            model.addAttribute("msg", "注册成功,我们已经向您的邮箱发送了一封激活邮件,请尽快激活!");
            model.addAttribute("target", "/index");
            return "/site/operate-result";
        } else {
            model.addAttribute("usernameMsg", map.get("usernameMsg"));
            model.addAttribute("passwordMsg", map.get("passwordMsg"));
            model.addAttribute("emailMsg", map.get("emailMsg"));
            return "/site/register";
        }
    }


    /**
     * 邮件激活的处理
     */
    // http://localhost:8080/community/activation/101/code
    @GetMapping("/activation/{userId}/{code}")
    public String activation(Model model, @PathVariable("userId") int userId, @PathVariable("code") String code) {
        int result = userService.activation(userId, code);
        if (result == ACTIVATION_SUCCESS) {
            model.addAttribute("msg", "激活成功,您的账号已经可以正常使用了!");
            model.addAttribute("target", "/login");
        } else if (result == ACTIVATION_REPEAT) {
            model.addAttribute("msg", "无效操作,该账号已经激活过了!");
            model.addAttribute("target", "/index");
        } else {
            model.addAttribute("msg", "激活失败,该链接不正确!");
            model.addAttribute("target", "/index");
        }
        return "/site/operate-result";
    }

    /**
     * 生成验证码图片
     * @param response
     * @param request
     */
    @RequestMapping(path = "/kaptcha", method = RequestMethod.GET)
    public void getKaptcha(HttpServletResponse response, HttpServletRequest request) {
        try {
            CaptchaUtil.out(request, response);
        } catch (IOException e) {
            logger.info("******生成图片验证码失败，原因为{}******",e.getMessage());
        }
    }

    @PostMapping("/login")
    public String login(String username, String password, String code, boolean rememberme,
                        Model model, HttpServletRequest request,HttpServletResponse response) {

        //检查验证码
        if (StringUtils.isBlank(code)||!CaptchaUtil.ver(code, request)){
            CaptchaUtil.clear(request);
            model.addAttribute("codeMsg", "验证码不正确!");
            return "/site/login";
        }

        // 检查账号,密码
        int expiredSeconds = rememberme ? REMEMBER_EXPIRED_SECONDS : DEFAULT_EXPIRED_SECONDS;
        Map<String, Object> map = userService.login(username, password, expiredSeconds);
        //说明登录成功了
        if (map.containsKey("ticket")) {
            Cookie cookie = new Cookie("ticket", map.get("ticket").toString());
            cookie.setPath(contextPath);
            cookie.setMaxAge(expiredSeconds);
            response.addCookie(cookie);
            return "redirect:/index";
        } else {
            model.addAttribute("usernameMsg", map.get("usernameMsg"));
            model.addAttribute("passwordMsg", map.get("passwordMsg"));
            return "/site/login";
        }
    }

    @GetMapping("/logout")
    public String logout(@CookieValue("ticket") String ticket) {
        userService.logout(ticket);
        return "redirect:/login";
    }

    @RequestMapping(path = "/error", method = RequestMethod.GET)
    public String getErrorPage() {
        return "/error/500";
    }







}
